56123546907659 has 24 divisors (see below), whose sum is σ = 70564754746080. Its totient is φ = 43693897484160.

The previous prime is 56123546907643. The next prime is 56123546907691. The reversal of 56123546907659 is 95670964532165.

It is not a de Polignac number, because 56123546907659 - 2⁴ = 56123546907643 is a prime.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (56123546907629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28388984 + ... + 30301509.

It is an arithmetic number, because the mean of its divisors is an integer number (2940198114420).

Almost surely, 2^{56123546907659} is an apocalyptic number.

56123546907659 is a deficient number, since it is larger than the sum of its proper divisors (14441207838421).

56123546907659 is a wasteful number, since it uses less digits than its factorization.

56123546907659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58691651 (or 58691640 counting only the distinct ones).

The product of its (nonzero) digits is 367416000, while the sum is 68.

The spelling of 56123546907659 in words is "fifty-six trillion, one hundred twenty-three billion, five hundred forty-six million, nine hundred seven thousand, six hundred fifty-nine".